This is not a premium mower. I'd much rather have a new Lawn-Boy Insight with Tecumseh for that kind of money. $150 is plenty for a used HRR.

That particular site ventures that it "may be" Hotta Yu Shotten, and that is believable because it even 'looks' like it could come from the 20s/30s era. I found an exact duplicate of your Dragon ware on a site and they were asking $159, I believe. FYI, the seller stated that it was circa 1910, but said that particular set had paper labeling. Like said, it's not a tea set. I've seen them called chocolate pots, and also seen them listed as demitasse sets. I suspect your 'cake plates' are the saucers. The set I found online had a sugar and creamer included. The mark "Japan, made in Japan" does not necessarily date a piece to pre-WWII. After the occupation ended in 1953, makers once again resumed stamping their ware for export the same way they did pre-war. Also, if the maker's mark is stamped in Japanese, it also does not make a piece "from the fine era". It may have been made in Japan and purchased as souvenirs by the thousands of military families who lived there in that time frame, and brought back home. A LOT of dinner and tea sets came to America that way. I'm just mentioning both of these issues as caveats to look for if you are buying or trying to evaluate Asian porcelain. I can also identify a lot of common artwork I've seen from the Vietnam War era. I have the exact same carved cat statue from Vietnam as my son in law's British father has sitting in his study. LOL. Seems my husband and he were in that area at the same time. This isn't 'worthless' clutter. They are usually exquisitely made and still appreciating. I have seen the dragonware broken up from original sets (pity) and sold by the cup/saucer for mega bucks, and entire dragon ware sets go upward of $350 if in perfect condition.

Look through Craigslist in your area and see what comparable pieces are going for.

Your current salary in an unrelated field should have no bearing on what you would charge, IMO. The only relevance it has is in helping you decide whether quitting your day job for the project manager job makes sense for you financially. IOW, you can decide that switching careers will work for you only if you can make X% of your current salary. There are websites such as salary.com that show pay ranges for construction project management, which you can then adjust for you own levels of education and experience, the requirements of the new job, and the fact that you'll be paid as a consultant and not an employee. Also, if you know others in the real estate rehab business, you might be able to get info from them. If you think about it, it's not that different from evaluating bids and estimates from subcontractors. You want to get a feel for the local going rate for that type of work. It sounds very exciting - I hope it works out well for you!